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andreashaycumberland Oct 30, 2009 8:34 am
There are a lot of little rules that apply to certain elements in redox reaction that the rule sheet and instruction
sheet doesn't tell you that Mrs. Duncan will have to explain.
abbycatheryn Oct 30, 2009 8:34 am
be sure to cancel out all of the spectator ions and double check the charges
abby c
abbycatheryn Nov 18, 2009 8:05 am
The labs are pretty straight-forward. Figure out how to do the half reactions because they are important in
figuring out the labs. On the lab analysis of vitamin c it is very important that you don’t use the last 20 mL of
the Iodine solution because it will mess the lab up, ask Mrs. Duncan for more.
andreashaycumberland Nov 18, 2009 8:10 am
In all of the redox labs use what u learned in the packet with half reactions to get to what u need to know for
the lab.
lpy Feb 19, 2010 8:32 am
Redox is kind of like balancing equations. read the instruction packet and learn solubility rules. Pg. 591 helps
in assigning Oxidation #s. Learn what A spectator ion is. Determine what is soluble first, delete substances
containing only elements that don't change charge or in other words Oxidation state. If instructions in the
instruction packet is unclear try reading the book if still no help ask Mrs. Duncan for help on the tricky
atw479 Feb 19, 2010 8:54 am
Make sure you receive a Balancing Redox Equations by the Half-reaction Method packet! This gives step by
step instructions on writing a balanced redox equation. This also gives information on specific facts you need
to know about assigning oxidation numbers, ionic equation rules, and solubility rules! You NEED to make
sure you brush up on all your solubility rules! VERY IMPORTANT! Some of the compounds in the
equations do not come apart and some do that are not on the sheet! If in doubt ASK Mrs. Duncan! :) page
591 in the black chemistry book helps with assigning the oxidation numbers. Make sure you also know about
spectator ions. This rotation is not very hard once you get the hang of it! GOOD LUCK :)
lpy Mar 23, 2010 8:16 am
In Redox Lab for the Vitamin C experiment use distilled water and to find gmm of vit. C or dehydroascorbic
acid use the red or maroon looking book titled Handbook of chemistry and Physics. Read instructions
carefully when doing redox reactions experiments; only add the chemical needed stated in the packet.
Remember how to do half reactions and balance them. In the bleach experiment use both bleach A and B.
nchshannahw Apr 9, 2010 8:19 am
Make sure to read and follow the instructions carefully. Take your time, write neat and be careful! This will
reduce confusion later when you double check your answers or when you have to find your mistakes. Good
Hannah Watson
abbycatheryn Oct 30, 2009 8:32 am
be sure to cancel out all of the spectator ions and double check the charges

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